https://www.techradar.com/news/new-windows-10-preview-shows-off-storage-trick-to-save-you-disk-space

Microsoft has pushed out another fresh preview build for the big Windows 10 update due next month (Redstone 5), with a bunch of general fixes for fast ring testers, and one more interesting change highlighted which aims to help you manage your drive space better.

Storage Sense is, as the name suggests, all about enabling you to make more sensible use of your available storage space.